auto123-num

先放效果图

 

 

 代码:

function init(set, data) {
        var $ = go.GraphObject.make;  // for conciseness in defining templates
        myDiagram = $(go.Diagram, "goJs_container",  // create a Diagram for the DIV HTML element
            {
                "undoManager.isEnabled": true,  // enable undo & redo
                layout: $(go.TreeLayout)
            });

        //新建节点
        myDiagram.nodeTemplate =
            $(go.Node, "Auto",
                $(go.Shape, "RoundedRectangle", { fill: "white" },// Shape.fill is bound to Node.data.color
                    new go.Binding("fill", "bgcolor")), // 设置节点的背景色
                $(go.TextBlock,
                    { margin: 8, font: "bold 15px sans-serif" }, // , stroke: \'#ddd\' Specify a margin to add some room around the text// TextBlock.text is bound to Node.data.key
                    new go.Binding("text", "key"), new go.Binding("stroke", "color"))  // 设置节点的前景色
            ); // nodeTag
        // 新建线条和箭头
        myDiagram.linkTemplate = $(go.Link,
            $(go.Shape, // the link shape
                { strokeWidth: 2, stroke: \'white\' }),
            $(go.Shape, // the arrowhead
                {
                    toArrow: \'OpenTriangle\',
                    fill: null, stroke: \'white\'
                })
        );
        // 其他设置,图表在画布中居左显示
        myDiagram.initialContentAlignment = go.Spot.Left;
        //通过节点数据和关系数组完成关系图。
        myDiagram.model = new go.GraphLinksModel(set, data);        
    }

设置节点的背景色代码解析:new go.Binding("fill","bgcolor")  ,将nodeDataArray里面设置的bgcolor属性绑定到“ fill ”属性上;

设置节点的前景色代码解析:new go.Binding("stroke","color")  ,将nodeDataArray里面设置的color属性绑定到“ stroke ”属性上;

关于nodeDataArray数据结构格式(也就是我的代码中的set数组)如下:

set.push(
{ key: \'节点1\', color: \'#ddd\', bgcolor: \'#4d65a6\' },
{ key: \'节点2\', color: \'#333\', bgcolor: \'#b9b2b6\' }
);

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